Overview of Research Progress on Solid Rocket Ramjet Engines

Beijing Electro-Mechanical Engineering Institute, Beijing, China

Published online: 13 April 2026

Abstract

Solid rocket ramjet engines are the ideal propulsion devices for high-speed aircraft. This article reviews the research history of solid rocket ramjet engines, analyzes the latest developments both domestically and internationally, and summarizes the key technologies that still need to be addressed in this field. These include wide-range flight inlet design, aircraft/engine integration overall technology, gas flow regulation technology, combustion organization technology, and so forth. Furthermore, it provides a summary and outlook on the future prospects of solid rocket ramjet engines, offering valuable insights for the development of related technologies in the future.